You can also try Kokoro and Sherpa. If this is for personal use the best local TTS is to grab a Mac, set the system voice to one of the current Siri voice mode

You can also try Kokoro and Sherpa. If this is for personal use the best local TTS is to grab a Mac, set the system voice to one of the current Siri voice models, and then use the 'say' command in the terminal. Yes, really. The nonbinary voice #5 in particular does really well at technical terminology.